Metallic car-roof construction.



J. J.- HOFFMAN. METALLIC GAR ROOF CONSTRUCTION.

APPLICATION FILED AUG. 20. 1910. Patented May 30,1911.

5 SEEETS-SHEBT 11 J. J. HOFFMAN. METALLIC OAR ROOF CONSTRUCTION.

APPLICATION IILBDIAUG. 20, 1910.

Patented May 30, 1911 5 SHEETS-SHEET 2.

J. J. HOFFMAN. METALLIC GAB ROOF CONSTRUCTION. APPLICATION FILED AUG. 20, 1910.

Patented May 30, 1911.

5 SHEETS-SHEET 3.

QNVENTOR wrmzss ES- JJJ HOFFMAN. METALLIC OAR ROOF. OONSTRUGTION.

APPLICATION FILED AUG. 20 1910.

Patented May 30, 1911.

5 S HEETS-SHEET 4.

WITNESSES J. J. HOFFMAN. METALLIC GAR ROOF CONSTRUCTION.

. APPLIOATIQN I'ILBD AUG. 20,1910. Patented May 30,

5 SHEETS-SHEET 5.

. UNITED STATES PATENT enema.

" JOHN .T}. HOFFMAN, or new KEnsIn-siron, PENNSYLVANIA, Assrenon T Pnrnn i.

MURPHY, or rrrrsnnne, PENNSYLVANIA.

METALLIC GAR-ROOF CONSTRUCTION. 7

Specification of Letters Patent. Patented May 39, I91 l.

Application filed August 20, 1910. Serial No. 578,207.

To all whom it'ma'y concern: 1

Be it known that I, JOHN J. HOFFMAN, of New'Kensington, county of lVestmoreland, and State of Pennsylvania, have invented a new and useful Improvement in Metallic Car-Roof Construction, of which the follow-- portand a finishing strip or cap for the forunation of a connective seam between the several sections of the roof;

The primary object ofmy invention is to provide a roof construction of thegeneral character indicated, which shall be extremely light and durable. which is easy to assemble and which shall be absolutely water-proof.

- With the above object in view, I also aim to.

provide a roof construction in which the seam formation maybe perfectly maintained under weaving of the root and contraction and expansion of the sheets, as will be hereinafter more fully set forth.

- I will now describe my invention so that others skilled in the art to which it appertains may understand and construct the same, referring to the accompanying drawings in which I have shown one embodiment of my invention. It will be apparent, however, that I do not limit myself in this respect, as many changes may be made in the construction shown without departing from my invention. I

I Figure l'is a Vertical section through a portion of correct embodyingmy invention; the section being taken approximately along the seam of the conjoined flanges of the root sheets; Fig. 2 is a section on the line'2-2 of Fig. 1; Fig. 3 is a section corresponding to Fig. 2 and showing a modification to be here inafter more fully referred to; Fig. 4 is a top plan .view of the supporting frame work;

the end-plate of the car being partly broken away; Fig. 5 is a. longitudinal vertical section of the roof. being taken substantially at the ridge purlin; Fig.6 is a perspective view partly broken away, showing the manner of securing the frame members or sup-' formation of the roof sheets; Fig. 11. is a similar view showing an end of the U-shaped finishing cap or strip before being bent to closed position; Fig. 12 is a similar view showing the end of the U-shaped cap asloeing closed; and Fig. 13 is a perspective view of the cap piece for protecting the fastening bolt oi the running-board saddle.

In describing my invention, the reference numeral 2 represents the siding, 8 the side plates, and t the crown mold or facia of a car of ordinary construction.

Arched to take the shape of the roof are the carlincs 5, which. are adapted tofbe disposed in the usual manner at intervals along the car siding. Each carline is in the form of a commercial rolled channel section, or ranged with its flanges G projecting upwardly and is provided with the depending end flange '7 by means of which it is secured to the respective side plate 3 of the car. This flange 7 is preferably torn-led by shear-- mg away the flanges 6 and bending down- Wardly the remainingterminal portion of the web of the channel, in the manner shown. If desired, the side plate may l a provided with the angle piece 8. longitudinally disserves to strengthen the side plate and 0b'- viatesthe necessity of bolting each. carline directly through the side plate and car siding, as the carlines'n'lay be secured to the angle, as by rivets 10, and the angle piece 8 rigidly secured to the side plate at a less number of points than the number of carlines.

Completing the supporting frame-work are the longitudinal members 11 which extend beneath and are spaced intervals along the carlines 5, as shown in Figs. 1 and 4. These members comprise the sections 12 and Wooden beam or stringers 13; the latter resting upon a substantially hori- Ham on H L 19. upper f:

bolt :24.

As sixmvn in Fig. 11 the (mp or strip 21 has the terminal Hnngs and 29, the former flanges f \Yhi(il an iidnptm 1'0 be first fQHedinWardly and 11mother top l Fliilfltiml of the sheet in my improved roof, recess 26 0f the head 27 of the inslvnmg l .n iiiied downwai'diy, shown ing (51011173 of the as water [101 mg Mung the Mm: f'lzn'ige will in", excluded by the upwardly slnping flange 33 and dii'ecied by 'the end of the flange 19. outside 01": the can. As above dvscribvd. the end of the U-:-.lmpcd finishing cap or strip overlies the opposing corners 0f the sheets with their depending flanges 19 so as to on fectually exclude moisture and cinders from the edge of the sheet at this point where the sheet passes over the edge of the car.

Referring to Fig. 3, I show the seam of the roof sheets as being provided withthe jinverted channel like strip 36 which is interposed between the members 23 and the horizontal wall of the cap 21 and which is ,provided with the upturned flange portions 37 which snugly fit against the inner faces ofthe flanges 6 of the carline, terminate substantially flush with the top edges thereof,

and form at each side of the supports 23 the drain flutes 37, the purpose of which is to prevent seepage through the perforated carline ofwater which readily condenses from moisturous and foggy atmosphere passing beneath the flanges ofthe U-shaped cap 2, as

in the case of the foggy atmosphere incident to seaboard railway lines. This drain strip 36 being arched, is preferably so disposed-to convey the water resulting from such condensation, along the fiutesfl'? t0 thesides of the car at points outside of the zone of the carlines and side plates.

In Fig. 8 I show my improved roofcon-' struction as employed'in connection with a incident to inoisturous condensation on the under face of the metallic roof sheets, as when the car is of the construction adapted for refrigeration service.

'ln l igs. 1, 5 and 13, the running board saddle is shownas mounted upon the U shaped finishing cap or strip 21 and, in Figs. 1 and 5, as being secured thereto by means of the bolt it) which passes down through the cap 21, carline 5 andundenpurli'n or longitudinal member 11. The head of this bolt lies in. the counter-sunk recess 41' in the saddle, and over this counter-sunk bolt head I place the cap piece 4-2, which has thedepending end flanges 43 which fit in suitable recesses transversely ofthe upper face of the saddle, and the side ears 4 4 which are adapted to cooperativelyresiliently hug the sides of the saddle. This cap piece arrangement serves to prevent moisture from entering the roof through the saddle bolt hole, should the superposed plank of the running board'become loosened or split.

In assembling the roof sections, the sheets are preferably first placed on the supports 11, between the npwardly projecting fianges of the carline= and the U-Shaped finishing strip carrying the supporting members 23, and in certain cases the drain strip 36, then inserted'interlockingly with. the edge flanges the side flanges 28 of the end of the finishing strip are folded inwardly and the end flange 29 folded downwardly and secured to the car-facia in the manner above described to effect sealing closure of the end of the strip and to prevent, by the flange 29, deflection thereof from the roof sheets. 7 i

lit will be apparent that the construction shown is capable of great modification without departure from the spirit of my invention, and I do not therefore desire to limit myself thereto.

The advantages of my im roved roof will be appreciatedby those skil ed in the art.

Having thus described my invention, what I claiin and desire to secure by Letters Patent, is,-

1. In a car roof, the combination with the car siding, of carlines carried thereby, angle sections spaced at intervals along the carlines and extending longitudinally of the roof, and so arranged as to have legs substantia-lly horizontally (llSPOSBd,ROI1-Hltilllic strips resting .upon the horizontal legs of the angle sections and extending between the carlines, and roofing resting upon the non-metallic strips between the cal-lines.

2. In a car roof, the combination with the car siding, of carlines carried thereby, angle sections spaced at intervals along the carline and. extending longitudinally ofthe roof and so arranged. as to have legs substantially horizontally disposed, non-metallic strips.

resting upon the horizontal legs of the angle sections and extending between the'carlines,

sub-sheathing resting upon the strips, and roofing resting upon the sheathing.

3. In a car roof, the combination with the, car siding, of carlines carried thereby, angle sections spaced at intervals along and extending beneath the carlines and so arranged as to have legs substantially horizontally disposed a distance from the under faces of the carlines, non-metallic strips resting upon the horizontal legs of the angle sections and extending between the carlines, and roofing resting upon non-metallic strips.

4. In a car roof, the combination with the car siding, of carlines carried thereby, angle sections spaced. at intervals along and extending beneath the carlines and so arranged as to have legs substantially horizontally disposed a distance from the under faces of the carlines, non-metallic strips resting upon v car siding, of carlines carried thereby, angle sections spaced, at intervals along. and ex tending beneath and secured to theearlines and tied to the end plates of the car and so L; 1 sheets. U f

potts, a cover strip mm: the bilge m-11y and dependmgv 7;:-

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